🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Model Years Covered: 1991-1997 Platform Name: Mitsubishi Diamante/Sigma platform Codes Chassis Codes: This manual likely covers models based on the JDM Mitsubishi Debonair/Sigma (platform designation not explicitly stated but inferable from the Sigma nameplate) and potentially North American Diamante variants that shared significant components. 👋 Introduction Market Position Segment: Mid-size to large luxury sedan, often positioned as Mitsubishi's flagship sedan in many markets. Competed with vehicles like the Toyota Avalon, Nissan Maxima, and Ford Taurus SHO. Target Audience: Owners and independent repair shops looking for detailed, authoritative information to maintain and repair their Mitsubishi Sigma or related Diamante models. Competitive Analysis Key Competitors: During its production run, the Sigma/Diamante competed against a range of front-wheel-drive and some all-wheel-drive sedans known for comfort, performance, and advanced features for their time. Key Features Manual Advantage: Provides 'step by step instruction and highly detailed exploded pictures, diagrams' for accurate and efficient repairs, saving time and money. Digital Format Benefits: Instant download, no shipping costs, easy access on smart devices for on-the-spot repairs, printable pages for workshop use. 📋 Manual Details Coverage Areas Primary Regions Of Focus: Likely comprehensive for models sold in North America (as Sigma) and potentially includes information relevant to JDM variants (as Debonair/Sigma) due to shared engineering and global production. Market Applicability: Applies to Mitsubishi Sigma models, and by extension, potentially North American Mitsubishi Diamante models within the specified year range as they share underlying platforms and powertrains. Page Count Estimated Page Count: Extremely comprehensive, typically over 1000 pages for a full service manual of this era covering multiple model years and engine options. Specific count not provided, but 'most complete' implies extensive detail. Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanicals, fuel system, ignition system, emission controls, engine cooling, lubrication, exhaust system, engine management (ECU). Transmission And Drivetrain: Automatic transmission (likely INVECS-II), manual transmission (if applicable for certain markets), transaxle, drive shafts, differentials, CV joints, axle shafts. Suspension And Steering: Front suspension (likely MacPherson struts or multi-link), rear suspension (likely multi-link independent), power steering system, steering column, steering gear/rack. Brakes: Front and rear brake systems (likely disc brakes all around), ABS (Anti-lock Braking System) diagnostics and repair, parking brake, brake fluid specifications. Electrical And Electronics: Battery, charging system (alternator), starting system, lighting systems (headlights, taillights, interior), instrument cluster, wiring diagrams, fuses and relays, power windows, power seats, central locking, cruise control, basic body control modules. Body And Chassis: Body structure, exterior trim, doors, windows, windshield, glass replacement, interior trim, seats, dashboard, body repairs, corrosion protection, chassis components. HVAC: Heating, ventilation, and air conditioning (HVAC) system, refrigerant handling, compressor, condenser, evaporator, climate control unit. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements (oil, air, fuel, cabin), spark plug replacement, coolant flushes, brake fluid changes, belt inspections and replacement. Repair: Engine overhauls, transmission repair, brake caliper and rotor replacement, suspension component replacement (shocks, struts, ball joints, tie rods), steering rack replacement, exhaust system repair, electrical component diagnosis and replacement. Troubleshooting: Diagnostic procedures for common faults, identification of symptoms, fault codes (if applicable to OBD-I or early OBD-II systems), step-by-step diagnostic flowcharts. Diagnostics: Engine performance diagnostics, electrical system troubleshooting, ABS system diagnostics, HVAC system diagnostics. Disassembly And Assembly: Detailed instructions for component removal, disassembly, inspection, repair, and reassembly of virtually all vehicle systems. Technical Depth Depth: Comprehensive, covering everything from basic maintenance to advanced engine and transmission rebuilds. Includes detailed specifications, torque values, diagnostic procedures, and wiring diagrams. Diagrams And Illustrations: High-quality diagrams, exploded views, and step-by-step illustrations showing component locations, assembly sequences, and repair processes. Special Tools: Identification and usage instructions for any specialized tools required for specific procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text, allowing for quick finding of specific topics or components. Print Quality Image Quality: Explicitly stated as 'top quality diagrams and instructions', ensuring clarity for visual guidance. Text Clarity: Described as 'accurate, clear and concise text'. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Quality: N/A (Digital PDF format), but designed for easy printing without ruining original shop manuals. ⚙️ Engine Specifications Primary Engine Engine Options: Likely offered with V6 engines. Common options for this era include the 3.0L 6G72 V6 and potentially a 3.5L 6G74 V6 in later years or higher trims. Specific engine codes are not provided in the product description but are essential for manual cross-referencing. Performance Horsepower Range: Typically ranging from approximately 150 hp to over 210 hp depending on the specific V6 engine and configuration. Precise figures vary by year and market. Torque Range: Torque figures would also vary, generally in the range of 170-230 lb-ft, supporting comfortable cruising and adequate acceleration. Fuel System Injection Type: Multi-point fuel injection (MPI) or Sequential...